XY plotter apparatus

摘要

An XY plotter apparatus includes a magnetic panel, a writing tool for applying a magnetic field, a writing tool drive and an erasing magnetic field generator. The writing tool consists of an electromagnet which is arranged so that specified characters and figures may be displayed at a high speed on a magnetic panel by the writing tool. Data of a figure to be displayed is inputted into the writing tool drive so as to generate signals for position control and a signal for actuating a switch for a coil inside the electromagnet.